Which to use
“looser” is an adjective and “louse” is a noun - they look or sound alike but fill different roles in a sentence.
- #29,352
- “looser” frequency rank
- #47,167
- “louse” frequency rank
- 76519
- confusion score
Side-by-Side Comparison
| Feature | looser | louse |
|---|---|---|
| Definition | comparative form of loose: more loose | A small parasitic wingless insect of the order Psocodea. |
Where the eye mixes looser and louse
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. looser runs 6 letters (CVVCVC) against louse's 5 (CVVCV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: looser vs louse
These two trip readers on the page rather than in the ear: looser is /ˈluːsə/ while louse is /laʊs/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 76519, derived from the frequency rank of both members and their visual similarity.
looser is recorded at frequency rank #29,352, classified as anadj, pronounced /ˈluːsə/. louse is at rank #47,167, tagged as anoun, pronounced /laʊs/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 76519, this pair ranks #29,876 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of looser vs louse
Shared letters: elos. Private to "looser": r. Private to "louse": u.
"looser" · 6 letters · shape CVVCVC · "louse" · 5 letters · shape CVVCV
Known mistypes of this pair
Frequently Asked Questions
Is swapping "looser" for "louse" ever safe?
Frequency check: "looser" vs "louse" - which ranks higher?
After this comparison
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "looser" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "louse" - compare definitions side by side with the headword page. Word entry
- This pair ranks #29,876 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "looser" and "louse" also get mixed up with nearby pairs, the highest-scored neighbour is "lope vs louse". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #29,876 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.